Vibrator.



A. G. GRAY.

VIBRATOR.

APILIOATION FILED SEPT. 4, 1907.

' 1 i J0 w WITNESSES ATTORNEYS PATENTED MAR. 24, 1908.

UNITED ILALIENT OFFICE.

VIBRATOR.

Application filed. September 4, 1907'.

T 0 all whom it may concern:

Be it known that I, ANDREW G. GRAY, a subject of the King of England, and a resident of St. John, Province of New Brunswick, Canada, have invented a new and Improved Vibrator, of which the following is a full, clear, and exact description.

This invention relates to certain improvements in vibrators and more particularly to a vibrator provided. with electrical connections whereby the device may be employed for treating the body electrically, and at the same time giving mechanical vibrations thereto.

More in detail, the invention involves a device adaptedv to he held in engagement with the body and having a sliding member by the movement of which vibrations are given to the device.

The device also serves as an electrical con- -ductor, and the contact face of the vibrator forms one of the electrodes engaging with the body.

Refcren ce is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in. all the views.

Figure 1 is an illustrative view showing a device constructed in accordance with my invention; Fig. 2 is a longitudinal section through the handle of the device shown in Fig. 1; Fig. 3 is a transverse section on the line 3-3 of Fig. 1; and Fig. l is a top plan view of the parts shown in ig. 3.

In the specific form of the device as illustrated in the accompanying drawings, I provide a metal tube 10 having a handle 11 of insulating material at one end thereof, and having a device movable longitudinally of the tube and so constructed that by this movement vibrations are given to the tube. This device preferably comprises a slide 12 of insulating material having a guiding portion 13 extending through a slot 14 in the side of the tube and holding the slide in engagement with the tube. At the lower side of the slide I provide a plurality of comparatively stiff metal springs 15, extending substantially parallel and set in vibration by the longitudinal movement of the slide.

In the operation of the vibrator independent of the electrical connections, the end of the handle 11 is pressed against the body and the thumb or forefinger placed in engage- Specification of Letters Patent.

Patented March 24, 1908.

Serial No. 391,287.

ment with the slide 12. As the slide is moved the springs 15 vibrate and tend to displace the guiding portion 13 so that it binds intermittently with the interior of the tube. As the slide is moved along, the vibrations of the springs and the intermittent binding of the slide with the tube gives the tube itself a vibrating action. In connection with this vibrator I preferably provide means for treating the body electrically, which means preferably includes any suitable battery 16 having a wire 17 connected to a base plate 18 or other suitable means for forming a contact with the body, and having a wire 19 extending to a binding post 20 upon the outer end of the tube. Within the handle of the tube is an induction coil 21, while the end or face of the handle is provided with a proper plate 22. One terminal 23 of the induction coil is connected to the tube 10, while the other terminal 24 is connected to the face plate 22. The induction coil serves to increase the voltage of the current by its inductance, and as it is the increased voltage rather than the increased amperage which causes an electric current to be beneficial medically, the e'fliciency of the device is greatly increased.

The patient, in using the vibrator with its electrical connections should stand upon the base plate 18 and press the handle with its face plate 22 against the body. The circuit from the battery includes the wire 19, tube 10, induction coil 21, plate 22, and the body of the patient and plate 18 back to the battery. Thus the apparatus serves not only to give mechanical vibrations to the body but also serves for electrical treatment.

Having thus described my invention I claim as new, and desire to secure by Letters Patent 1. A device of the class described, comprising a tube having a longitudinally-disposed slot therein, a slide within said tube extending longitudinally thereof and having a portion thereof extending through said slot, and a plurality of springs carried by said slide and adapted tovibrate and transmit vibrations to the tube as the slide is moved longitudinally of the latter.

2. A device of the class described, comprising an insulating handle, an induction coil disposed therein, a metallic face plate in electrical connectionwith said coil, a tube connected to said handle and also connected testimony whereof I have signed to said coil, a slide movable longitudinally of name to this specification in the presence of said tube and adapted to mechanically vitwo subscribing Witnesses.

brate the same, a battery, means connecting ANDREW G. GRAY, 5 said battery and said tube, and means also Witnesses:

connected to said battery and adapted to en- BLANOHE G. KEAN,

gage with the body EDWARD T. O. KNOWLES. 

